Venus make helical gear box dealers one built on modular concept of construction conforming to gear for material handling equipment standards contact us – 9810007538. This provides economic mass production

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GEAR-BOXES
Venus Make Helical gear boxes one built on modular Concept of construction conforming to is standards with respect to sizes,
dimensions. This Provides economic mass prodiction, Comprehensive Maintenance of stocks, favourable delivery period and
easy of servicing
Housing
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Goods Lift
Manual Crab Winch
Electric Power Winch
Jib Crane
Manual Jib Crane
Elec. Chain Hoist
Geared Motor
POWER HYDRO-PROJECT
Rigid, Robust, Torsion resistant Housing in high grade Cast iron to dampen vibration and resist the heat Max. Capacity
produced in most modern foundry foundry in house. Housing in cast steel or fabricated steel be can be supplied if required.
Gears and pinions
The gears are generated with highest Accuracy on hobbing Machine. The material for the pinion and
Gear wheel are made of hard wearing special steel of graded strength to meet the individual load
conditions. The selection of module, footh profile, and material is made in conformity with speeds,
ration, and load conditions to give maximum tooth contact and overlap, thus ensuring most favorable meshing and soundless
running.
Shafts
Shafts having pinions cut integral are of heat treated alloy steel bars or alloy steel forging. All other
shafts are of heat-treated carbon steel and are finished to high precision tolerance by grinding.
Bearings
Anti-friction bearings of ample size are used throughout to ensure long service life. The useof antifriction bearings ensure high
efficiency, correct centre distance and proper shaft alignment. Shaft extensions are fitted with high quality seals to prevent oil
leakage and dust entry.
Lubrication
For Normal speeds, splash lubrication is provided by gears dipping in oil. The oil level indicator located
in the housing is to ensure a proper amount of lubricant in the housing.
Cooling
The heat generated within the gear units is dissipated by a sufficiently large surfaced area of the housing for higher capacities
additional cooling is provided by fans, cooling inside lower housing depending on heat dissipation
requirement based on power to be transmitted and ambient temperature.
Efficiency, Range & Reduction ratio :
Type & Reduction Unit Efficiency Centre distance Reduction ratio
Horizontally Single Stage 98% 100 to 400 mm. 1.83:1 to 8:1
Horizontally Double Stage 96% 250 to 1000 mm. 8.23:1 to 48.57:1
Horizontally Tripple Stage 94% 400 to 1250 mm. 31.5:1 to 160:1
Vertically Tripple  Stage 93% 250 to 600 mm. 14.85:1 to 33.4:1
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3. Optional Features
Non Standard ratio
Housing in Cost Steel or fabricated steel
Reinforced bearings for external loads
Special Seals
Shaft extension input/output
Fan Cooling or Cooling Coil
Integral tooth male clutch with output shaft
Gears and pinion should have in spur as well as Helical
The Gear Units are available with various assembly arrangements such as.
Type of oil
The lubricating oil used should be straight mineral oil or Extreme pressure (E.P.) Oil as specified below. It should be high
graded well refined petroleum Oil within the recommended viscosity range. It must be neutral in viscosity, no grfit or abrasives
should be present. The first Oil change should be mede after about 1000 hrs running or two month which even is earlier. The
Subsequent changes would be made every 2000 hrs or Six monthes which ever is earlier, The opevating temperature should
not be excessive. Temperature upto 90ºC. is harmless to any Component.
Recommended lubricants:-
Maker's Name Without Oil Pump With Oil Pump
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4. Castrol
Up to 250 CD 250 to 1500CD Up to 250CD 250 to 1500CD
Aipha 617 Aipha 417 Aipha 517 Aipha317
Indian Oil
Servo System 553 Servo System 553 Servo System 553 Servo System 526
Servo Mesh Sp 40 Servo Mesh Sp 28 Servo Mesh Sp 28 Servo Mesh Sp 28
Selection Procedure of Gear Box
Determine the horse power required for the prime-mover
Compute the required reduction radio by dividing Input R. P.M. to out put R.P.M.
Select the Class of duty
Try to reduced Input R.P.M. so that required Ratio and size of Gear box should be minimum and Small
The size should be selecteed such that the rated H.P. is equal or more than the Consumed H.P
Example :
Select a unit to tranmit 10 H.P. from 960 RPM electric motor.
For Hoist drive in class II duty crane., Out put R.P.M. is 30. Therefore the required Ration is 32 or (Taking 31.5
Standand)
See from Reduction ration table two stage Horizontal gear box type H.B. will be suitable.
See the ration Colum and in the size HB-350 for input R.P.M. of 960 in Class II duty the rated HP is 12.6
As the Consumed HP is 10, the unit HB- 350 will be suitable.
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